RESPIRATORY PRESSURE THERAPY SYSTEM WITH NEBULISING HUMIDIFIER

The present invention discloses a respiratory apparatus for use in treating a respiratory disorder in a patient, the system comprising: a vaporizer apparatus comprising: a vaporizer housing; a vaporizer inlet configured to be connectable to an air circuit and to receive a nebula in a flow of air at a positive pressure with respect to ambient pressure; a heating element configured to generate heat to vaporize the received nebula to humidify the flow of air; and a vaporizer outlet positioned on a posterior side of the vaporizer housing in use and configured to connect to a patient interface for delivering the humidified flow of air; and the patient interface, the patient interface being configured to be directly connected to the vaporizer apparatus, the patient interface comprising a plenum chamber, wherein the vaporizer housing is connected to the plenum chamber; wherein the vaporizer apparatus comprises one or more connecting surfaces surrounding the vaporizer outlet; wherein the plenum chamber comprises one or more complementary connecting surfaces surrounding an opening in the plenum chamber; and wherein the one or more connecting surfaces are structured to sealingly mate with the one or more complementary connecting surfaces.